Weather on March 12
Portland, OR
55 Years of Data
Avg High
55°F
Avg Low
41°F
Warmest
2015
61°F avg
Coldest
1990
40°F avg
About This Date
March 12th in Portland, OR typically brings cool spring weather, with average highs around 55°F and lows near 41°F. Over 56 years of records, the warmest March 12th was in 2015 (61°F average), while the coldest was 1990 (40°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 59% of March 12th dates historically, with the wettest March 12th recording 5.08" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 12th in Portland, OR? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 51° | 44° | 48° | 5.08" | — |
| 2025 | 51° | 45° | 48° | 1.75" | — |
| 2024 | 51° | 41° | 46° | 0.33" | — |
| 2023 | 47° | 36° | 41° | 0.48" | — |
| 2022 | 60° | 35° | 48° | 0.51" | — |
| 2021 | 61° | 36° | 48° | — | — |
| 2020 | 54° | 34° | 44° | — | — |
| 2019 | 49° | 39° | 44° | 1.47" | — |
| 2018 | 68° | 47° | 57° | — | — |
| 2017 | 63° | 46° | 54° | — | — |
| 2016 | 51° | 42° | 47° | 1.27" | — |
| 2015warmest | 68° | 53° | 61° | — | — |
| 2014 | 66° | 37° | 52° | — | — |
| 2013 | 61° | 48° | 54° | — | — |
| 2012 | 50° | 37° | 44° | 2.26" | — |
| 2011 | 51° | 43° | 47° | 0.69" | — |
| 2010 | 50° | 39° | 45° | 1.12" | — |
| 2009 | 52° | 33° | 42° | — | — |
| 2008 | 54° | 39° | 46° | 0.69" | — |
| 2007 | 62° | 46° | 54° | 0.89" | — |
| 2006 | 46° | 36° | 41° | 0.36" | — |
| 2005 | — | 47° | — | — | — |
| 2004 | 59° | 42° | 51° | — | — |
| 2003 | 56° | 51° | 53° | 1.3" | — |
| 2002 | 47° | 41° | 44° | 0.91" | — |
| 2001 | 58° | 43° | 50° | — | — |
| 2000 | 55° | 37° | 46° | — | — |
| 1999 | 49° | 33° | 41° | 1.65" | — |
| 1998 | 63° | 44° | 53° | — | — |
| 1997 | 50° | 37° | 44° | 0.76" | — |
| 1996 | 53° | 45° | 49° | — | — |
| 1995 | 54° | 44° | 49° | 0.23" | — |
| 1994 | 69° | 39° | 54° | — | — |
| 1993 | 52° | 43° | 47° | — | — |
| 1992 | 66° | 42° | 54° | — | — |
| 1991 | 51° | 39° | 45° | 0.23" | — |
| 1990coldest | 48° | 32° | 40° | 0.05" | — |
| 1989 | 54° | 46° | 50° | 1.7" | — |
| 1988 | 59° | 32° | 46° | — | — |
| 1987 | 55° | 49° | 52° | 1.63" | — |
| 1986 | 53° | 43° | 48° | 0.25" | — |
| 1985 | 53° | 40° | 46° | — | — |
| 1984 | 54° | 45° | 49° | 0.38" | — |
| 1983 | 62° | 46° | 54° | 0.79" | — |
| 1982 | 53° | 35° | 44° | — | — |
| 1981 | 65° | 41° | 53° | — | — |
| 1980 | 45° | 39° | 42° | 1.8" | — |
| 1979 | 62° | 43° | 52° | — | — |
| 1978 | 52° | 44° | 48° | 0.03" | — |
| 1977 | 45° | 37° | 41° | 1.63" | — |
| 1976 | 53° | 31° | 42° | — | — |
| 1975 | 49° | 38° | 43° | 0.15" | — |
| 1974 | 48° | 36° | 42° | 1.57" | — |
| 1973 | 48° | 40° | 44° | 0.3" | — |
| 1972 | 62° | 53° | 58° | 1.96" | — |
| 1971 | 51° | 38° | 44° | 1.7" | — |
56 years of data from PORTLAND KGW-TV